Question

Describe how vertical profiles may be relevant to understanding both abiotic (physical property) and biotic (life) factors

Answer 1

Abiotic (physical property) and biotic (life) factors

Explanation:

Biological factor (biotic)

Life history

• Knowledge about the life-histories of focal taxa is desirable but may be unknown when designing eDNA sampling strategies. Nevertheless, understanding the relationship between an organism's size, age, condition, or biological activity and the production of DNA within the environment will aid in determining the precise relationship between eDNA concentration and relative abundance measures. These species and habitat-specific nuances highlight the importance of a priori biogeographic and phenological pattern knowledge.

Abiotic factors

Temperature and salinity

• Certainly most aquatic animals specialize within a narrow range of abiotic factors, resulting in trade-offs at multiple hierarchical levels, from molecular structure to whole organismal functioning and behavior (Portner 2010). For example in ectotherms, simple maintenance—the metabolism reacts as a function of temperature